[lkml]   [2009]   [Jul]   [16]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH] mm: count only reclaimable lru pages
Hi, Wu.
I already agreed this concept.
Wow, It looks better than old. :)

On Thu, Jul 16, 2009 at 10:34 PM, Wu Fengguang<> wrote:
> global_lru_pages() / zone_lru_pages() can be used in two ways:
> - to estimate max reclaimable pages in determine_dirtyable_memory()
> - to calculate the slab scan ratio
> When swap is full or not present, the anon lru lists are not reclaimable
> and thus won't be scanned. So the anon pages shall not be counted. Also
> rename the function names to reflect the new meaning.
> It can greatly (and correctly) increase the slab scan rate under high memory
> pressure (when most file pages have been reclaimed and swap is full/absent),
> thus avoid possible false OOM kills.
> Cc: Minchan Kim <>
> Cc: KOSAKI Motohiro <>
> Signed-off-by: Wu Fengguang <>
Reviewed-by: Minchan Kim <>

Kind regards,
Minchan Kim

 \ /
  Last update: 2009-07-16 16:19    [W:0.095 / U:4.464 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site